Hastelloy® Fasteners: Corrosion-Resistant Bolts & Screws

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Hastelloy® Fasteners: Unrivaled Defense Against the Most Aggressive Corrosive Environments

In applications where failure is not an option, Hastelloy fasteners provide the critical line of defense. From concentrated acids and chlorine-bearing environments to severe reducing and oxidizing conditions, Hastelloy bolts, screws, and threaded rods ensure long-term integrity and safety in chemical processing, pollution control, pharmaceutical, and marine industries. We specialize in supplying premium hastelloy c276 fasteners and other high-performance grades for your most demanding projects.

Our Premium Range of Hastelloy® Alloy Fasteners

We offer a complete inventory of corrosion-resistant fastening solutions, including:

Hastelloy C276 Bolts / C276 Hex Bolts: The industry benchmark for versatility in harsh conditions.
Hastelloy Screws & Studs: Precision-machined for secure assemblies in critical equipment.
Hastelloy Threaded Rod: Available for custom fabrication and structural applications.
Hastelloy C22 Fasteners: For enhanced oxidizing and local corrosion resistance.
Hastelloy B2 Fasteners: Optimized for extreme reducing environments like hydrochloric acid.
Hastelloy C Bolts (a generic term often referring to C276/C22 family alloys).

Understanding the "C" Family: C276 vs. C22

Two of the most specified grades, Hastelloy C276 bolts and Hastelloy C22 fasteners, offer distinct advantages:

Hastelloy C276 (UNS N10276): The workhorse. Excellent general corrosion resistance across a vast range of acids, chlorides, and mixed acids/salts. Ideal for Flue Gas Desulfurization (FGD) systems and chemical reactors.
Hastelloy C22 (UNS N06022): An enhanced version with higher chromium content. Superior resistance to oxidizing media, pitting, crevice corrosion, and stress corrosion cracking (SCC). Often chosen for the most aggressive waste treatment and pharmaceutical applications.

Comprehensive Comparison: Hastelloy Fastener Grades

Feature / Grade	Hastelloy C276	Hastelloy C22	Hastelloy B2	Hastelloy X	Hastelloy C2000®
UNS Designation	N10276	N06022	N10665	N06002	N06200
Primary Strengthening	Solid Solution (Ni-Cr-Mo-W)	Solid Solution (Ni-Cr-Mo-W)	Solid Solution (Ni-Mo)	Solid Solution (Ni-Cr-Fe-Mo)	Solid Solution (Ni-Cr-Mo-Cu)
Key Strength	Versatile resistance to a wide range of acids, chlorides, and oxidizing salts. Excellent fabricability.	Superior oxidizing & localized corrosion resistance. Optimal for hot contaminated acids.	Exceptional resistance to reducing acids (HCl, H₂SO₄), with very low iron content.	High-temperature strength & oxidation resistance up to 1200°C. Good fabricability.	Broadest corrosion resistance, combining the benefits of C276 and B2 families.
Max Service Temp	~400°C (750°F) for corrosion	~400°C (750°F) for corrosion	~400°C (750°F) for corrosion	~1200°C (2200°F) for oxidation	~400°C (750°F) for corrosion
Corrosion Focus	Mixed acids, chlorine, hypochlorite, seawater, FGD environments.	Hot contaminated oxidizing acids (H₂SO₄, HNO₃), seawater, brines.	Hydrochloric acid, sulfuric acid (all concentrations), reducing chemicals.	High-temperature oxidation, furnace components, gas turbines.	Both oxidizing and reducing acids, including sulfuric and hydrochloric.
Typical Fastener Application	Reactor vessels, heat exchangers, scrubbers in CPI, offshore components.	Aggressive chemical & waste processing, pickling tanks, pharmaceutical reactors.	Acid production, tubing, fittings in highly reducing environments.	Combustion cans, afterburners, high-temperature furnace bolting.	Multipurpose plants handling complex, changing chemistries.
Weldability	Excellent, minimal susceptibility to HAZ precipitation.	Excellent, more resistant to HAZ precipitation than C276.	Good, but requires strict control to avoid precipitation.	Good.	Excellent.
Machinability	Fair to Difficult (similar to other Ni-Cr-Mo alloys).	Fair to Difficult.	Fair to Difficult.	Fair.	Fair to Difficult.

Hastelloy Bolts Price & Value Proposition

The hastelloy bolts price is influenced by the high nickel, molybdenum, and chromium content, as well as the specialized manufacturing required. While a premium investment, c276 fasteners and other Hastelloy grades provide unmatched cost-effectiveness by preventing catastrophic failures, minimizing downtime, and extending equipment life in corrosive service.

Your Trusted Source for High-Performance Fasteners

Whether you require standard c276 hex bolts or specialized hastelloy threaded rod in B2, C22, or C276 alloys, we provide certified, traceable products with complete MTRs. Our technical team can help you select the optimal grade to balance performance requirements and budget.

Contact us today for a competitive quote on hastelloy c276 bolts or to discuss your specific corrosion challenge. Ensure the integrity of your critical assembly with the proven protection of genuine Hastelloy fasteners.

Note: Hastelloy® is a registered trademark of Haynes International Inc.